Compact, Half-Bridge, Reinforced Isolated Gate Drive Reference Design
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Key Document


The TIDA-01159 design provides a reference solution for half-bridge isolated gated drivers used in driving power stages of UPS, inverters, server and telecom applications. This TI Design is based on the UCC21520 reinforced insulated gate driver from TI, and is capable of driving MOSFETs and SiC-FETs. The reference design contains a built-in isolated push-pull auxiliary power supply for powering the output of the isolated gate driver. By bringing  together the isolated gate driver and isolated power supply in a compact board with a form factor (!~30 mm × 35 mm), this reference design provides a fully tested robust half bridge driver solution, capable of withstanding >100 kV/μs common mode transient immunity (CMTI).

  • Compact gate drive solution for driving power stages used in Mid- and High-Voltage Power Converters, Single-Phase and Three-Phase Inverters
  • High driving current (4-A Source and 6-A Sink) Suits Driving MOSFET/ SiC-FET With Currents upto 100 A and Operating Frequencies up to 2 MHz, reducing switching losses significantly
  • Supports 3250-VPK and 3000-VRMS Basic Isolation
  • Provides very High CMTI of > 100 kV/μs for robust operation in noisy high dv/dt environment
  • Integrated Dead-Time in gate driver improves reliability and avoids accidental shoot through of the power stage.
  • Built-in compact , high efficient isolated supply to power the output side of the gate driver

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Design Files

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TI Devices (3)

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Part Number Name Product Family Sample & Buy Design Kits & Evaluation Modules
SN6505B  Low-noise 1-A, 420-kHz transformer driver for isolated power supplies  Isolation  Sample & Buy View Design Kits & Evaluation Modules
UCC21520  4A/6A, 5.7 kVrms Isolated Dual Channel Gate Driver  Gate drivers  Sample & Buy View Design Kits & Evaluation Modules
UCC21540  Reinforced Isolation Dual-Channel Gate Driver With 3.3mm Channel-to-Channel Spacing Option  Gate drivers  Sample & Buy View Design Kits & Evaluation Modules

CAD/CAE symbols

Part # Package | Pins CAD File (.bxl) STEP Model (.stp)
SN6505B Download Download
UCC21520 Download Download
UCC21540 Download

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Technical Documents

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User guides (1)
Title Type Size (KB) Date
PDF 3176 08 Dec 2016
Design files (6)
Title Type Size (KB) Date
ZIP 525 09 Dec 2016
ZIP 1760 09 Dec 2016
PDF 310 09 Dec 2016
PDF 66 09 Dec 2016
PDF 116 09 Dec 2016
PDF 353 09 Dec 2016

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